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Melting conditions of granitoid xenoliths in contact with alkaline mafic magma (Gusinoozerskaya Dyke, Western Transbaikalia) : To the problem of the origin of ultrapotassic acid melts. / Khubanov, V. B.; Vrublevskaya, T. T.; Tsygankov, A. A. et al.

In: Geodynamics and Tectonophysics, Vol. 8, No. 2, 01.01.2017, p. 347-368.

Research output: Contribution to journal › Article › peer-review

Harvard

Khubanov, VB, Vrublevskaya, TT, Tsygankov, AA, Vladimirov, AG, Buyantuev, MD, Sokolova, EN, Posokhov, VF & Khromova, EA 2017, 'Melting conditions of granitoid xenoliths in contact with alkaline mafic magma (Gusinoozerskaya Dyke, Western Transbaikalia): To the problem of the origin of ultrapotassic acid melts', Geodynamics and Tectonophysics, vol. 8, no. 2, pp. 347-368. https://doi.org/10.5800/GT-2017-8-2-0245

APA

Khubanov, V. B., Vrublevskaya, T. T., Tsygankov, A. A., Vladimirov, A. G., Buyantuev, M. D., Sokolova, E. N., Posokhov, V. F., & Khromova, E. A. (2017). Melting conditions of granitoid xenoliths in contact with alkaline mafic magma (Gusinoozerskaya Dyke, Western Transbaikalia): To the problem of the origin of ultrapotassic acid melts. Geodynamics and Tectonophysics, 8(2), 347-368. https://doi.org/10.5800/GT-2017-8-2-0245

Vancouver

Khubanov VB, Vrublevskaya TT, Tsygankov AA, Vladimirov AG, Buyantuev MD, Sokolova EN et al. Melting conditions of granitoid xenoliths in contact with alkaline mafic magma (Gusinoozerskaya Dyke, Western Transbaikalia): To the problem of the origin of ultrapotassic acid melts. Geodynamics and Tectonophysics. 2017 Jan 1;8(2):347-368. doi: 10.5800/GT-2017-8-2-0245

Author

Khubanov, V. B. ; Vrublevskaya, T. T. ; Tsygankov, A. A. et al. / Melting conditions of granitoid xenoliths in contact with alkaline mafic magma (Gusinoozerskaya Dyke, Western Transbaikalia) : To the problem of the origin of ultrapotassic acid melts. In: Geodynamics and Tectonophysics. 2017 ; Vol. 8, No. 2. pp. 347-368.

BibTeX

@article{2e707abf39104282840c67fe3bc8b99f,
title = "Melting conditions of granitoid xenoliths in contact with alkaline mafic magma (Gusinoozerskaya Dyke, Western Transbaikalia): To the problem of the origin of ultrapotassic acid melts",
abstract = "The alkaline mafic (lamprophyric) Gusinoozerskaya dyke in West Transbaikalia is composed of partially melted granite xenoliths. Among the xenoliths, two melted substrates are observed: (1) plagioclase and quartz, and (2) alkaline feldspar and quartz. Few millimeters thick microfelsite and microgranophiric rims are the products of melting around the granite xenoliths. Ultra-acid glass is observed in the inner parts of the xenoliths at the boundary of quartz and feldspars. A distinctive feature of the fresh melts (regardless of the composition of the protolithic substrate) is an increased content of potassium with K2O/Na2O≥2. Having compared the compositions of the products of contact melting with the experimental data, we conclude that melting took place in the presence of alkaline-chloride and/or alkaline-carbonic fluid released from the crystallizing host alkaline-basic magma. The probable geotectonic conditions for the occurrence of ultrapotassic acid magmas are estimated.",
keywords = "Alkaline mafic magma, Calc-alkaline lamprophyre, Contact melting, Granitoid xenoliths, Gusinoozerskaya dyke, Petrogenetic and tectonic conditions, Transbaikalia, Ultrapotassic acidic melt",
author = "Khubanov, {V. B.} and Vrublevskaya, {T. T.} and Tsygankov, {A. A.} and Vladimirov, {A. G.} and Buyantuev, {M. D.} and Sokolova, {E. N.} and Posokhov, {V. F.} and Khromova, {E. A.}",
year = "2017",
month = jan,
day = "1",
doi = "10.5800/GT-2017-8-2-0245",
language = "English",
volume = "8",
pages = "347--368",
journal = "Geodynamics and Tectonophysics",
issn = "2078-502X",
publisher = "Institute of the Earth's Crust",
number = "2",

}

RIS

TY - JOUR

T1 - Melting conditions of granitoid xenoliths in contact with alkaline mafic magma (Gusinoozerskaya Dyke, Western Transbaikalia)

T2 - To the problem of the origin of ultrapotassic acid melts

AU - Khubanov, V. B.

AU - Vrublevskaya, T. T.

AU - Tsygankov, A. A.

AU - Vladimirov, A. G.

AU - Buyantuev, M. D.

AU - Sokolova, E. N.

AU - Posokhov, V. F.

AU - Khromova, E. A.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The alkaline mafic (lamprophyric) Gusinoozerskaya dyke in West Transbaikalia is composed of partially melted granite xenoliths. Among the xenoliths, two melted substrates are observed: (1) plagioclase and quartz, and (2) alkaline feldspar and quartz. Few millimeters thick microfelsite and microgranophiric rims are the products of melting around the granite xenoliths. Ultra-acid glass is observed in the inner parts of the xenoliths at the boundary of quartz and feldspars. A distinctive feature of the fresh melts (regardless of the composition of the protolithic substrate) is an increased content of potassium with K2O/Na2O≥2. Having compared the compositions of the products of contact melting with the experimental data, we conclude that melting took place in the presence of alkaline-chloride and/or alkaline-carbonic fluid released from the crystallizing host alkaline-basic magma. The probable geotectonic conditions for the occurrence of ultrapotassic acid magmas are estimated.

AB - The alkaline mafic (lamprophyric) Gusinoozerskaya dyke in West Transbaikalia is composed of partially melted granite xenoliths. Among the xenoliths, two melted substrates are observed: (1) plagioclase and quartz, and (2) alkaline feldspar and quartz. Few millimeters thick microfelsite and microgranophiric rims are the products of melting around the granite xenoliths. Ultra-acid glass is observed in the inner parts of the xenoliths at the boundary of quartz and feldspars. A distinctive feature of the fresh melts (regardless of the composition of the protolithic substrate) is an increased content of potassium with K2O/Na2O≥2. Having compared the compositions of the products of contact melting with the experimental data, we conclude that melting took place in the presence of alkaline-chloride and/or alkaline-carbonic fluid released from the crystallizing host alkaline-basic magma. The probable geotectonic conditions for the occurrence of ultrapotassic acid magmas are estimated.

KW - Alkaline mafic magma

KW - Calc-alkaline lamprophyre

KW - Contact melting

KW - Granitoid xenoliths

KW - Gusinoozerskaya dyke

KW - Petrogenetic and tectonic conditions

KW - Transbaikalia

KW - Ultrapotassic acidic melt

UR - http://www.scopus.com/inward/record.url?scp=85042333792&partnerID=8YFLogxK

U2 - 10.5800/GT-2017-8-2-0245

DO - 10.5800/GT-2017-8-2-0245

M3 - Article

AN - SCOPUS:85042333792

VL - 8

SP - 347

EP - 368

JO - Geodynamics and Tectonophysics

JF - Geodynamics and Tectonophysics

SN - 2078-502X

IS - 2

ER -

ID: 9975759